What is it about?
422 players have solved 4,091 challenges and gathered 1,074,830 XP so far.
Create an account and try to solve as many challanges as you can. The more you can solve, the more you learn. » let's begin
- No guessing or remote brute force needed, the title always helps a lot
After you solve a challenge, you can read the detailed explanation of the given vulnerability and instructions on how can you eliminate the problem.
Learn to defense, not to attack
We would like to make it clear that this site has been created for teaching how to defend and not how to attack. Always wear your white hat and do not destroy or steal anything.